#1 girls have always looked at the guy with a cool car, I'm sure this is true everywhere. When you are young you generally aren't looking for a life mate, but rather having some fun. The superficial only lasts a while, it will never endure.
#2 You are thinking too much
Have a date, have some fun, hell have 3 or 4 dates, have some fun. If you don't find something to hold your interest, you'll move on...but you will have had some fun. It's easy for me to advise from afar, but just generally, you are deciding she isn't for you, and you've never spent any time together. Just my 2 céntimos